[PATCH] IB/mthca: Report correct max_msg_sz

Set the max_msg_sz port property correctly in mthca's port_query
function.  Also zero out the attr struct so that we don't leave
any other members uninitialized.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index f5e135f1dc59..08a7340e19ff 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -120,6 +120,8 @@ static int mthca_query_port(struct ib_device *ibdev,
         if (!in_mad || !out_mad)
                 goto out;
 
+        memset(props, 0, sizeof *props);
+
         memset(in_mad, 0, sizeof *in_mad);
         in_mad->base_version       = 1;
         in_mad->mgmt_class         = IB_MGMT_CLASS_SUBN_LID_ROUTED;
@@ -146,6 +148,7 @@ static int mthca_query_port(struct ib_device *ibdev,
         props->phys_state        = out_mad->data[33] >> 4;
         props->port_cap_flags    = be32_to_cpup((__be32 *) (out_mad->data + 20));
         props->gid_tbl_len       = to_mdev(ibdev)->limits.gid_table_len;
+        props->max_msg_sz        = 0x80000000;
         props->pkey_tbl_len      = to_mdev(ibdev)->limits.pkey_table_len;
         props->qkey_viol_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 48));
         props->active_width      = out_mad->data[31] & 0xf;